I actually think WTs are rarer here than elsewhere because you can't send messages to more than one player at once. In my experience, WTs are great if you're England or Turkey and terrible if you're anybody else, as England just rides it until they get stuck, and then stabs France and Germany, while Turkey organizes everybody to stop the WT, then stabs everybody else when England stabs France and Germany.
As for those other alliances . . . for some reason, I rarely play Jugs as either Russia or Turkey. I like AT from both sides, and I haven't played Russia in press in a while, but I think the last time I soloed in 1906 by allying with Austria (and then stabbing him, and then backing out, and then stabbing him again . . .). The only other good player on that map was Turkey, and he made the mistake of not covering Black Sea in spring 1901.